Members of our Owners Association in Calis have had several long conversations about pool times and have now come up with an agreed 7am to 9pm.
As we are currently all British owners, as are our visitors / renters, the sign is in English only.
We have published a brochure for those renting which is available electronically in advance and also in a hard copy at the apartments giving details of complex guidelines, pool times, security, refuse collection information etc.
Whilst you can never guarantee "guidelines" or "rules" hopefully everyone will at least have consideration for their neighbours.
So far we have had few problems in over 3 years - we hope it stays that way.